Home / 761,509.92-1,050,880.86-421,977.90

Finding the Fourth Proportional to 761,509.92, 1,050,880.86 and 421,977.90

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Solution

The fourth proportional to 761,509.92, 1,050,880.86 and 421,977.90 is: 582,327.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,509.92 : 1,050,880.86 = 421,977.90 : x
  2. Step 2: Convert to fraction form
    761,509.92/1,050,880.86 = 421,977.90/x
  3. Step 3: Cross multiply
    761,509.92x = 1,050,880.86 × 421,977.90
  4. Step 4: Simplify right side
    761,509.92x = 443,448,498,452.99
  5. Step 5: Solve for x
    x = 443,448,498,452.99/761,509.92
  6. Step 6: Final answer
    x = 582,327.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.